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Related papers: N\'eel Spin Currents in Antiferromagnets

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We present a transfer matrix approach that combines the Blonder-Tinkham-Klapwijk (BTK) formalism and self-consistent solutions to the Bogolibuov-de Gennes (BdG) equations and use it to study the tunneling conductance and spin transport in…

Superconductivity · Physics 2015-06-22 Chien-Te Wu , Oriol T. Valls , Klaus Halterman

In metallic ferromagnets, an electric current is accompanied by a flux of angula r momentum, also called spin current. In multilayers, spatial variations of the spin current correspond to drive torques exerted on a magnetic layer. These…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 L. Berger

Spin-polarized charge-currents induce magnetic tunnel junction (MTJ) switching by virtue of spin-transfer-torque (STT). Recently, by taking advantage of the spin dependent thermoelectric properties of magnetic materials, novel means of…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Aakash Pushp , Timothy Phung , Charles Rettner , Brian P. Hughes , See-Hun Yang , Stuart S. P. Parkin

Electrical-controllable antiferromagnet tunnel junction is a key goal in spintronics, holding immense promise for ultra-dense and ultra-stable antiferromagnetic memory with high processing speed for modern information technology. Here, we…

Applied Physics · Physics 2024-04-02 Lei Han , Xuming Luo , Yingqian Xu , Hua Bai , Wenxuan Zhu , Yuxiang Zhu , Guoqiang Yu , Cheng Song , Feng Pan

Antiferromagnets with vanishingly small (or zero) magnetization are interesting candidates for spintronics applications. In the present paper we propose two models for description of the current-induced phenomena in antiferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2013-06-03 Helen Gomonay , Vadim Loktev

A theory of spin polarized tunneling spectroscopy based on a scattering theory is given for tunneling junctions between ferromagnets and d-wave superconductors. The spin filtering effect of an exchange field in the insulator is also…

Superconductivity · Physics 2009-10-31 S. Kashiwaya , Y. Tanaka , N. Yoshida , M. R. Beasley

Altermagnetism, an emergent magnetic phase featuring compensated collinear magnetic moments and momentum-dependent spin splittings, has recently garnered widespread interest. A critical issue concerns whether the unconventional spin…

Materials Science · Physics 2026-05-28 Wen-Ti Guo , Junqi Xu , Yurong Yang , Haijun Zhang , Huaiqiang Wang

We investigate real-time dynamics of spin-polarized current in a quantum dot coupled to ferromagnetic leads in both parallel and antiparallel alignments. While an external bias voltage is taken constant in time, a gate terminal,…

Mesoscale and Nanoscale Physics · Physics 2011-12-22 Fabricio M. Souza , Thiago L. Carrara , E. Vernek

Nanoelectromangetomechanical systems (NEMMS) open up a new path for the development of high speed autonomous nanoresonators and signal generators that could be used as actuators, for information processing, as elements of quantum computers…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Helen V. Gomonay , Svitlana V. Kondovych , Vadim M. Loktev

We consider analytically current-driven dynamics of magnetic N\'{e}el walls in heavy metal/ferromagnetic metal/oxide trilayers where strong spin-orbit coupling and interfacial Dzyaloshinskii-Moriya interaction (i-DMI) coexist. We show that…

Mesoscale and Nanoscale Physics · Physics 2019-05-09 Mei Li , Jianbo Wang , Jie Lu

One of the most important challenges in antiferromagnetic spintronics is the read-out of the N\'eel vector state. High current densities up to 10$^8$ Acm$^{-2}$ used in the electrical switching experiments cause notorious difficulty in…

Materials Science · Physics 2022-03-29 M. J. Grzybowski , C. F. Schippers , M. E. Bal , K. Rubi , U. Zeitler , M. Foltyn , B. Koopmans , H. J. M. Swagten

We observe strongly nonlinear spin dynamics in ferro-/antiferro-magnetic multilayers, controlled by the number of bilayers in the system, layer thicknesses, as well as temperature, peaking in magnitude near the N\'eel point of the…

Mesoscale and Nanoscale Physics · Physics 2025-06-23 O. Busel , D. Polishchuk , A. Kravets , V. Korenivski

Spin-orbit coupling enables charge currents to give rise to spin currents and vice versa, which has applications in non-volatile magnetic memories, miniature microwave oscillators, thermoelectric converters and Terahertz devices. In the…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 Angie Davidson , Vivek P. Amin , Wafa S. Aljuaid , Paul M. Haney , Xin Fan

The novel electronic state of the canted antiferromagnetic (AFM) insulator, strontium iridate (Sr2IrO4) has been well described by the spin-orbit-entangled isospin Jeff = 1/2, but the role of isospin in transport phenomena remains poorly…

Strongly Correlated Electrons · Physics 2019-05-03 Nara Lee , Eunjung Ko , Hwan Young Choi , Yun Jeong Hong , Muhammad Nauman , Woun Kang , Hyoung Joon Choi , Young Jai Choi , Younjung Jo

Electrical manipulation of spins is essential to design state-of-the-art spintronic devices and commonly relies on the spin current injected from a second heavy-metal material. The fact that chiral antiferromagnets produce spin current…

Materials Science · Physics 2022-10-26 Hang Xie , Xin Chen , Qi Zhang , Zhiqiang Mu , Xinhai Zhang , Binghai Yan , Yihong Wu

Magnon spin currents in insulating magnets are useful for low-power spintronics. However, in magnets stacked by antiferromagnetic (AFM) exchange coupling, which have recently aroused significant interest for potential applications in…

The generation of spin currents and their application to the manipulation of magnetic states is fundamental to spintronics. Of particular interest are chiral antiferromagnets that exhibit properties typical of ferromagnetic materials even…

The family of monolayer two-dimensional (2D) materials hosts a wide range of interesting phenomena, including superconductivity, charge density waves, topological states and ferromagnetism, but direct evidence for antiferromagnetism in the…

Materials Science · Physics 2021-10-12 Zhuoliang Ni , A. V. Haglund , H. Wang , B. Xu , C. Bernhard , D. G. Mandrus , X. Qian , E. J. Mele , C. L. Kane , Liang Wu

Spin currents can exert spin-transfer torques on magnetic systems even in the limit of vanishingly small net magnetization, as is the case for antiferromagnets. Here, we experimentally show that a spin-transfer torque is operative in a…

Electrical detection of the 180 deg spin reversal, which is the basis of the operation of ferromagnetic memories, is among the outstanding challenges in the research of antiferromagnetic spintronics. Analogous effects to the ferromagnetic…